Everyone talks about that stuff, I've tried it twice on moto cross bikes and 4 wheelers, it did absolutely nothing! It was no better then windex. It must be good from reading about it on other forums, but it in no way shape or form worked for me.
I'm very anal about keeping my equipment clean, and been cleaning customers equipment for 30 years, I've tried pretty much every cleaner that's out there (within reason) and Mean Green from FAMILY DOLLAR is easily the best de greaser I've used. $5.00 a gallon!
Purple power, greased lightening, Awesome, etc, not even close.
Now, on a Doo belly pan, good luck. That's tough. Mean Green will take off 97% of it, but anything I've tried I can never get it perfect.